chrome/browser/ui/libgtk2ui/native_theme_gtk2.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_LIBGTK2UI_NATIVE_THEME_GTK2_H_
   6 #define CHROME_BROWSER_UI_LIBGTK2UI_NATIVE_THEME_GTK2_H_
   7
   8 #include <gtk/gtk.h>
   9
  10 #include "chrome/browser/ui/libgtk2ui/owned_widget_gtk2.h"
  11 #include "ui/native_theme/native_theme_base.h"
  12
  13 typedef struct _GdkColor GdkColor;
  14
  15 namespace libgtk2ui {
  16
  17 // A version of NativeTheme that uses GTK2 supplied colours instead of the
  18 // default aura colours. Analogue to NativeThemeWin, except that can't be
  19 // compiled into the main chrome binary like the Windows code can.
  20 class NativeThemeGtk2 : public ui::NativeThemeBase {
  21  public:
  22   static NativeThemeGtk2* instance();
  23
  24   // Overridden from ui::NativeThemeBase:
  25   gfx::Size GetPartSize(Part part,
  26                         State state,
  27                         const ExtraParams& extra) const override;
  28   void Paint(SkCanvas* canvas,
  29              Part part,
  30              State state,
  31              const gfx::Rect& rect,
  32              const ExtraParams& extra) const override;
  33   SkColor GetSystemColor(ColorId color_id) const override;
  34   void PaintMenuPopupBackground(
  35       SkCanvas* canvas,
  36       const gfx::Size& size,
  37       const MenuBackgroundExtraParams& menu_background) const override;
  38   void PaintMenuItemBackground(
  39       SkCanvas* canvas,
  40       State state,
  41       const gfx::Rect& rect,
  42       const MenuListExtraParams& menu_list) const override;
  43
  44  private:
  45   NativeThemeGtk2();
  46   ~NativeThemeGtk2() override;
  47
  48   // Implementation of GetSystemColor.
  49   GdkColor GetSystemGdkColor(ColorId color_id) const;
  50
  51   // Returns styles associated with various widget types.
  52   GtkWidget* GetRealizedWindow() const;
  53   GtkStyle* GetWindowStyle() const;
  54   GtkStyle* GetEntryStyle() const;
  55   GtkStyle* GetLabelStyle() const;
  56   GtkStyle* GetButtonStyle() const;
  57   GtkStyle* GetTreeStyle() const;
  58   GtkStyle* GetTooltipStyle() const;
  59   GtkStyle* GetMenuStyle() const;
  60   GtkStyle* GetMenuItemStyle() const;
  61
  62   void PaintComboboxArrow(SkCanvas* canvas,
  63                           GtkStateType state,
  64                           const gfx::Rect& rect) const;
  65
  66   mutable GtkWidget* fake_window_;
  67   mutable GtkWidget* fake_tooltip_;
  68   mutable OwnedWidgetGtk fake_entry_;
  69   mutable OwnedWidgetGtk fake_label_;
  70   mutable OwnedWidgetGtk fake_button_;
  71   mutable OwnedWidgetGtk fake_tree_;
  72
  73   mutable OwnedWidgetGtk fake_menu_;
  74   mutable GtkWidget* fake_menu_item_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(NativeThemeGtk2);
  77 };
  78
  79 }  // namespace libgtk2ui
  80
  81 #endif  // CHROME_BROWSER_UI_LIBGTK2UI_NATIVE_THEME_GTK2_H_